<template>
    <div class="container">
        <div class="app-container">
            <div class="left">
                <el-input v-model="queryParams.keyword" style="margin-bottom:10px" type="text"
                    prefix-icon="el-icon-search" size="small" placeholder="输入员工姓名全员搜索" @input="changeValue" />
                <!-- 树形组件 -->
                <el-tree ref="deptTree" node-key="id" :data="depts" :props="defaultProps" default-expand-all
                    :expand-on-click-node="false" highlight-current @current-change="selectNode" />
            </div>
            <div class="right">
                <el-row class="opeate-tools" type="flex" justify="end">
                    <el-button v-permission="'add-employee'" size="mini" type="primary" @click="$router.push('/employee/detail')">添加员工</el-button>
                    <el-button size="mini" @click="showExcelDialog = true">excel导入</el-button>
                    <el-button size="mini" @click="exportEmployee">excel导出</el-button>
                </el-row>
                <!-- 表格组件 -->
                <el-table :data="list">
                    <el-table-column prop="staffPhoto" align="center" label="头像">
                        <template v-slot="{ row }">
                            <el-avatar v-if="row.staffPhoto" :src="row.staffPhoto" :size="30" />
                            <span v-else class="username">{{ row.username.charAt(0) }}</span>
                        </template>
                    </el-table-column>
                    <el-table-column prop="username" label="姓名" />
                    <el-table-column prop="mobile" label="手机号" sortable />
                    <el-table-column prop="workNumber" label="工号" sortable />
                    <el-table-column prop="formOfEmployment" label="聘用形式">
                        <template v-slot="{ row }">
                            <span v-if="row.formOfEmployment === 1">正式</span>
                            <span v-else-if="row.formOfEmployment === 2">非正式</span>
                            <span v-else>无</span>
                        </template>
                    </el-table-column>
                    <el-table-column prop="departmentName" label="部门" />
                    <el-table-column prop="timeOfEntry" label="入职时间" sortable />
                    <el-table-column label="操作" width="280px">
                        <template v-slot="{ row }">
                            <el-button size="mini" type="text"
                                @click="$router.push(`/employee/detail/${row.id}`)">查看</el-button>
                            <el-button size="mini" type="text" @click="btnRole(row.id)">角色</el-button>
                            <el-popconfirm title="确认删除该行数据吗？" @onConfirm="confirmDel(row.id)">
                                <el-button slot="reference" style="margin-left:10px" size="mini"
                                    type="text">删除</el-button>
                            </el-popconfirm>
                        </template>
                    </el-table-column>
                </el-table>
                <!-- 分页 -->
                <el-row style="height: 60px" align="middle" type="flex" justify="end">
                    <el-pagination layout="total,prev, pager, next" :total="total" :current-page="queryParams.page"
                        :page-size="queryParams.pagesize" @current-change="changePage" />
                </el-row>
            </div>
        </div>
        <import-excel :show-excel-dialog.sync="showExcelDialog" @uploadSuccess="getEmployeeList" />
        <el-dialog :visible.sync="showRoleDialog" title="分配角色">
            <!-- 弹层内容 -->
            <!-- checkbox -->
            <el-checkbox-group v-model="roleIds">
                <!-- 放置n个的checkbox  要执行checkbox的存储值 item.id-->
                <el-checkbox v-for="item in roleList" :key="item.id" :label="item.id">{{ item.name }}</el-checkbox>
            </el-checkbox-group>
            <el-row slot="footer" type="flex" justify="center">
                <el-col :span="6">
                    <el-button type="primary" size="mini" @click="btnRoleOK">确定</el-button>
                    <el-button size="mini" @click="showRoleDialog = false">取消</el-button>
                </el-col>
            </el-row>
        </el-dialog>
    </div>
</template>

<script>
import FileSaver from 'file-saver'
import { Message } from 'element-ui'
import { getEmployeeList, exportEmployee, delEmployee, getEnableRoleList, assignRole,getEmployeeDetail } from '@/api/employee'
import { getDepartment } from '@/api/department'
import { transListToTreeData } from '@/utils/index'
import ImportExcel from './components/import-excel.vue'
export default {
    name: 'Employee',
    components: {
        ImportExcel
    },
    data() {
        return {
            currentUserId: null, // 用来记录当前点击的用户id
            showRoleDialog: false, // 用来控制角色弹层的显示
            roleList: [], // 接收角色列表
            roleIds: [], // 用来双向绑定数据的
            showExcelDialog: false,
            queryParams: {
                departmentId: null,
                page: 1, // 当前页码
                pagesize: 10,
                keyword: '' // 模糊搜索字段
            },
            total: 0, // 记录员工的总数
            list: [],
            queryParams: {
                departmentId: null
            },
            depts: [], // 组织数据
            defaultProps: {
                label: 'name',
                children: 'children'
            }
        }
    },
    created() {
        this.getDepartment()
    },
    methods: {
        async btnRoleOK() {
            await assignRole({
                id: this.currentUserId,
                roleIds: this.roleIds
            })
            this.$message.success('分配用户角色成功')
            this.showRoleDialog = false
        },
        async btnRole(id) {
            this.roleList = await getEnableRoleList()
            // 记录当前点击的id 因为后边 确定取消要存取给对应的用户
            this.currentUserId = id
            const { roleIds } = await getEmployeeDetail(id)
            this.roleIds = roleIds
            this.showRoleDialog = true // 调整顺序
        },
        async confirmDel(id) {
            await delEmployee(id)
            if (this.list.length === 1 && this.queryParams.page > 1) this.queryParams.page--
            this.getEmployeeList()
            Message.success('删除员工成功')
        },
        async exportEmployee() {
            const result = await exportEmployee() // 导出所有的员工接口
            // console.log(result) // 使用一个npm包 直接将blob文件下载到本地 file-saver
            // FileSaver.saveAs(blob对象,文件名称)
            FileSaver.saveAs(result, '员工信息表.xlsx') // 下载文件
            Message.success('导出成功')
        },
        changeValue() {
            // 单位时间内只执行最后一次
            // this的实例上赋值了一个timer的属性
            clearTimeout(this.timer) // 清理上一次的定时器
            this.timer = setTimeout(() => {
                this.queryParams.page = 1
                this.getEmployeeList()
            }, 300)
        },
        changePage(newPage) {
            this.queryParams.page = newPage // 赋值新页码
            this.getEmployeeList() // 查询数据
        },
        async getDepartment() {
            // 递归方法 将列表转化成树形
            // let result = await getDepartment()
            this.depts = transListToTreeData(await getDepartment(), 0)
            this.queryParams.departmentId = this.depts[0].id
            // 设置选中节点
            // 树组件渲染是异步的 等到更新完毕
            this.$nextTick(() => {
                // 此时意味着树渲染完毕
                this.$refs.deptTree.setCurrentKey(this.queryParams.departmentId)
            })
            // 这个时候参数 记录了id
            this.getEmployeeList()
        },
        // 获取员工列表的方法
        async getEmployeeList() {
            const { rows } = await getEmployeeList(this.queryParams)
            this.list = rows
        },
        selectNode(node) {
            this.queryParams.departmentId = node.id // 重新记录了参数
            this.queryParams.page = 1 // 设置第一页
            this.getEmployeeList()
        },
    }
}
</script>

<style lang="scss" scoped>
.app-container {
    background: #fff;
    display: flex;

    .left {
        width: 280px;
        padding: 20px;
        border-right: 1px solid #eaeef4;
    }

    .right {
        flex: 1;
        padding: 20px;

        .opeate-tools {
            margin: 10px;
        }

        .username {
            height: 30px;
            width: 30px;
            line-height: 30px;
            text-align: center;
            border-radius: 50%;
            color: #fff;
            background: #04C9BE;
            font-size: 12px;
            display: inline-block;
        }
    }
}
</style>